61642344 has 16 divisors (see below), whose sum is σ = 154105920. Its totient is φ = 20547440.

The previous prime is 61642331. The next prime is 61642351. The reversal of 61642344 is 44324616.

61642344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1284192 + ... + 1284239.

It is an arithmetic number, because the mean of its divisors is an integer number (9631620).

Almost surely, 2^61642344 is an apocalyptic number.

It is an amenable number.

61642344 is an abundant number, since it is smaller than the sum of its proper divisors (92463576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61642344 is a wasteful number, since it uses less digits than its factorization.

61642344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568440 (or 2568436 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 61642344 is about 7851.2638473051. The cubic root of 61642344 is about 395.0266370970.

The spelling of 61642344 in words is "sixty-one million, six hundred forty-two thousand, three hundred forty-four".